1) i must tell you this story. 2) i must wash the floor. 3) we must close the door. 4) he must write a lettr. 5) she must phone me. 6) she must help your mother. , эти предложения сделать вопросительными !

1) must I tell you this story?
2) must I wash the floor?
3) must we close the door?
4) must he write a letter?
5) must she phone me?
6) must she help your mother?